The correct option is Bluejacking.

Bluejacking involves sending unsolicited Bluetooth messages such as vCards or short text to nearby devices. An attacker can craft those messages with attacker supplied content and use social engineering to persuade a user to follow a link or take an action that might deliver a malicious payload.

Bluejacking normally does not grant direct access to files or device control, but it is effective for delivering content to a target device which can be the first step in a compromise.

Bluesnarfing is incorrect because it refers to unauthorized access to or theft of data from a Bluetooth device rather than sending unsolicited messages to deliver attacker supplied content.

Bluebugging is incorrect because it involves gaining unauthorized control of a device and creating a backdoor rather than the simple sending of messages that bluejacking describes.

Bluetracing is incorrect because it is not a standard, widely recognized Bluetooth attack technique and it does not describe sending attacker supplied messages to targets.

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